| |
|
Sound
Absorption
Coefficients
at Frequency
ASTM E 795 Type A mounting /
Sabins / sq ft. |
|
Thickness |
125 Hz |
250Hz |
500Hz |
1000Hz |
2000Hz |
4000Hz |
NRC |
|
1/2" |
0.03 |
0.04 |
0.08 |
0.26 |
0.43 |
0.16 |
0.20 |
|
1" |
0.16 |
0.15 |
0.45 |
0.36 |
0.20 |
0.29 |
0.30 |
|
Sound Transmission Loss (dB) |
| |
125Nz |
250Nz |
500Nz |
1000Nz |
2000Nz |
4000Nz |
STC |
|
1" |
12 |
12 |
17 |
22 |
24 |
32 |
17 |
|
Please note this is a baseline. It is provided only as
a starting point. Physical properties can be
adjusted to meet specific requirements.
For a deeper discussion on Acoustical
Properties, see the Acoustic FAQs (Basic
& Architectural)
section of our Website or contact an All Tech Industries
engineer today (989-826-9999).
Contact an All Tech Industries engineer today
(989-826-9999)
for a deeper discussion about your specific acoustic requirements.
